Installing Lag Shield Anchors

The installation of lag shield anchors can be done in the five steps outlined below. Lag shields are rust-proof and are often used in concrete, tile, brick cinder block, mortar and stone. Depending on the type of material and level of strength needed to secure the object, lag shield anchors came in both long and short lengths. A lag shield can be removed and unbolted after installation if necessary.

1. Drill hole of recommended diameter, into the base material equal to the length of the expansion anchor plus one half inch (1/2") or more.
2. Clean the hole of all dust and cuttings.
3. Place the expansion anchor, ribbed end first, into hole. Tap with a hammer until flush with the surface of base material.
4. Position the material to be fastened over the shield in the base material and screw in the lag screw.
5. If the lag screw begins to torque-up or tighten before the head of the lag screw mates up against the object being fastened, the shield should be driven deeper into the hole by hand hammering the head of the lag screw until flush to the object being fastened. Re-tighten the lag screw to complete the expansion of the shield and to secure the material being fastened.

Lag Shield Detailed Installation Instructions

The lag shield is another type of female anchor that is designed for use in concrete, brick or block. The diameter of the hole to be drilled is the same size as the outside diameter of the lag shield. The exact hole size is marked on the side of the anchor or can be found this lag shield technical information chart.

When fastening to concrete, brick or block, a hole must be drilled into the base material. A hammer drill must be used as it will create the best quality hole. Once the bit is chucked into the hammer drill, the depth of the hole to be drilled can easily be set by using the depth gauge on the hammer drill or by simply wrapping the bit with tape at the depth that is required. Before starting to drill the hole, it is important that eye and ear protection are used.

Make sure the hammer drill is in the hammer mode and start drilling your hole. Continue drilling until the tape on the bit meets the base material. The hole must be cleaned of all concrete dust to ensure proper fastening. Using a wire brush and a vacuum or compressed air will ensure that the hole is cleaned out properly. The lag shield is inserted into the hole. A light tap with a hammer will help in getting the anchor level with the base material. Place the fixture over the anchor. Insert the lag screw through the fixture and into the anchor. Use a wrench to expand the anchor and to secure the material being fastened. It is very important not to overtorque the bolt. The bolt is used to expand the anchor and too much torque may cause the anchor to slip decreasing holding values.

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